Amendment Flag Fair value of awards granted in prior year forfeited. Deduct: Fair Value at Prior Year End of Awards Granted during Prior FY that were Forfeited [Member] Change in fair value of awards granted in prior year vested. Add: Vesting Date Fair Value of Awards Granted during Prior FY that Vested [Member] Change in fair value of outstanding and unvested stock awards granted in prior years measured as of year end. Add: Year over Year Change in Fair Value of Awards Granted during Prior FY that were Outstanding and Unvested [Member] Fair value of equity awards granted during the year unvested. Add: Fair Value at Applicable FY End of Awards Granted during Applicable FY that Remain Unvested [Member] Summary of Compensation Table Total [Member] Summary of Compensation Table Total [Member] Summary of Compensation Table Total [Member] Dividends or other earnings paid prior to vesting date. Add: Dividends or Other Earnings Paid during Applicable FY prior to Vesting Date [Member] Entity Registrant Name Document Type Stock awards. Stock Awards [Member] Castagna. Castagna [Member] Entity Central Index Key Cover [Abstract]