Equity (Narrative) (Details)		3 Months Ended
	Dec. 10, 2014 USD ($) employee shares	Dec. 31, 2015 USD ($) plan $ / shares shares	Dec. 31, 2014 USD ($)	Sep. 30, 2015 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity incentive compensation plans maintained by the company | plan		3
Intrinsic value of shares exercised		$ 80,000	$ 49,000
Unvested restricted stock units (in shares) | shares		574,799
Stock-based compensation expense		$ 363,000	1,774,000
Cash matching contribution		100,000
Value of common stock contributed			100,000
Discontinued Operations [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 24,000	800,000
Employee stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, average minimum vesting period		4 years
Stock options, average maximum vesting period		5 years
Stock options, contractual life		10 years
Unrecognized compensation expense		$ 200,000
Unrecognized compensation expense, period for recognition		3 years 11 months 27 days
Number of shares affected (in shares) | shares	56,000
Incremental expense (benefit) with modification	$ (200,000)
Stock-based compensation expense		$ 6,000	177,000
Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares affected (in shares) | shares	147,000
Number of employees affected | employee	80
Incremental expense (benefit) with modification	$ 49,000
Remaining unamortized stock-based compensation expense		$ 1,900,000
Remaining unamortized stock-based compensation expense, period for recognition		1 year 9 months 7 days
Unvested restricted stock units (in shares) | shares		574,799		570,231
Outstanding non-vested RSUs aggregate intrinsic value		$ 3,500,000
Outstanding non-vested RSUs weighted average remaining contractual term		11 months 1 day
Share-based compensation arrangement by share-based payment award, equity instruments other than options, aggregate intrinsic value, vested		$ 0	2,100,000
Share-based compensation arrangement, by share-based payment award, options, vested and expected to vest, exercisable, number | shares		500,000
Share based compensation arrangement, by share based payment award, equity instruments other than options, expected to vest, intrinsic value		$ 3,400,000
Share based compensation arrangement, by share based payment award, equity investments other than options, expected to vest, weighted average contractual term		10 months 21 days
Weighted average grant date fair value, shares granted (in usd per share) | $ / shares		$ 7.82
Vested (in shares) | shares	300,000	266
Employee stock purchase plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 55,000	$ 50,000
Employee stock purchase plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Stock Purchase Plan (ESPP), Employee Purchase Price Percentage		85.00%
Employee Stock Purchase Plan (ESPP), Annual Employee Contribution Limit Percentage		10.00%
Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost		$ 25,000