Note 14 - Employee Stock Option and Retirement Plans - Changes to the Current Estimate of the Vesting Percentage and Related Expense (Details) (Parentheticals)	1 Months Ended	3 Months Ended			9 Months Ended	59 Months Ended
	Jul. 31, 2012	Sep. 30, 2016	Nov. 30, 2015	Feb. 28, 2015	May 31, 2017	May 31, 2017
Performance-based Options, Four Year Measurement Period [Member] | Code Red, Inc. [Member] | Share-based Compensation Award, Tranche One [Member]
Vesting percentage					0.00%
Performance-based Options, Four Year Measurement Period [Member] | Code Red, Inc. [Member] | Share-based Compensation Award, Tranche Two [Member]
Vesting percentage					50.00%
Performance-based Options, Four Year Measurement Period [Member] | Code Red, Inc. [Member] | Share-based Compensation Award, Tranche Three [Member]
Vesting percentage					70.00%
Performance-based Options, Four Year Measurement Period [Member] | Code Red, Inc. [Member] | Share-based Compensation Award, Tranche Four [Member]
Vesting percentage					100.00%
Performance Shares [Member]
Vesting percentage	20.00%					80.00%
Performance Shares [Member] | Code Red, Inc. [Member] | Share-based Compensation Award, Tranche One [Member]
Vesting percentage				70.00%
Performance Shares [Member] | Portware LLC [Member] | Share-based Compensation Award, Tranche One [Member]
Vesting percentage		40.00%	40.00%		0.00%
Performance Shares [Member] | Portware LLC [Member] | Share-based Compensation Award, Tranche Two [Member]
Vesting percentage		20.00%	20.00%		50.00%
Performance Shares [Member] | Portware LLC [Member] | Share-based Compensation Award, Tranche Three [Member]
Vesting percentage					70.00%
Performance Shares [Member] | Portware LLC [Member] | Share-based Compensation Award, Tranche Four [Member]
Vesting percentage					100.00%
Performance Shares, Additional Granted [Member] | Portware LLC [Member] | Share-based Compensation Award, Tranche One [Member]
Vesting percentage					0.00%
Performance Shares, Additional Granted [Member] | Portware LLC [Member] | Share-based Compensation Award, Tranche Two [Member]
Vesting percentage					100.00%
Performance-based Options, Two Year Measurement Period [Member] | Code Red, Inc. [Member] | Share-based Compensation Award, Tranche One [Member]
Vesting percentage					0.00%
Performance-based Options, Two Year Measurement Period [Member] | Code Red, Inc. [Member] | Share-based Compensation Award, Tranche Two [Member]
Vesting percentage					10.00%
Performance-based Options, Two Year Measurement Period [Member] | Code Red, Inc. [Member] | Share-based Compensation Award, Tranche Three [Member]
Vesting percentage					40.00%
Performance-based Options, Two Year Measurement Period [Member] | Code Red, Inc. [Member] | Share-based Compensation Award, Tranche Four [Member]
Vesting percentage					70.00%
Performance-based Options, Two Year Measurement Period [Member] | Code Red, Inc. [Member] | Share-based Compensation Award, Tranche Five [Member]
Vesting percentage					100.00%