Quarterly Results (Unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
Net revenue	$ 28,708	$ 24,742	$ 26,318	$ 23,746	$ 27,750	$ 24,965	$ 24,846	$ 23,700	$ 103,514	$ 101,261	$ 94,008
Gross profit	14,610	14,129	16,669	14,674	16,660	15,155	16,588	15,637	60,081	64,040	57,619
Asset impairments and related charges	1,836	0	0	0	0		18	0	3,454	327	120
Increase (Decrease) in Fair Value Adjustments on Other Assets (Liabilities) Carried at Fair Value under Fair Value Option									1,836	327	120
Restructuring, severance and other charges	569	95	448	370	569	206	562	55	1,482	1,392	1,495
Loss from continuing operations	(5,426)	(2,715)	(1,127)	(2,229)	(663)	(1,711)	(1,310)	789	(11,497)	(2,895)	(6,214)
Income from discontinued operations, net of taxes					(1,346)	(952)	21,763	527	0	19,992	4,916
Net income (loss)	$ (5,426)	$ (2,715)	$ (1,127)	$ (2,229)	$ (2,009)	$ (2,663)	$ 20,453	$ 1,316	$ (11,497)	$ 17,097	$ (1,298)
Income (Loss) from Continuing Operations, Per Basic Share	$ (0.24)	$ (0.12)	$ (0.05)	$ (0.10)					$ (0.51)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	$ 0.00	$ 0.00	$ 0.00	$ 0.00					$ 0.00
Net (loss) income per share - basic (in dollars per share)	$ (0.24)	$ (0.12)	$ (0.05)	$ (0.10)					$ (0.51)
Loss from continuing operations (in dollars per share)					$ (0.03)	$ (0.08)	$ (0.06)	$ 0.04	$ (0.51)	$ (0.13)	$ (0.28)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share					$ 0.06	$ 0.04	$ (0.98)	$ (0.02)	$ 0.00	$ (0.90)	$ (0.22)
Earnings Per Share, Basic and Diluted									$ (0.51)	$ 0.77	$ (0.06)