Quarterly Results (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Net revenue	$ 32,056	$ 31,310	$ 30,129	$ 33,865	$ 30,602	$ 33,448	$ 32,676	$ 30,953	$ 127,360	$ 127,678	$ 120,366
Gross profit	16,749	15,628	15,370	16,670	15,475	16,241	15,879	16,191	64,417	63,785	68,106
Asset impairments and related charges					77	1,395	0	89		1,561
Net loss	(210)	(1,934)	(3,248)	(2,958)	(5,287)	(1,737)	(2,400)	(2,297)	(8,350)	(11,721)	(3,765)
Legal settlements	$ 0	$ 150	$ 0	$ 0	$ 0	$ 0	$ 85	$ 0	$ 150	$ 85	$ 268
Net loss Per share data-basic and diluted	$ (0.01)	$ (0.08)	$ (0.14)	$ (0.13)	$ (0.23)	$ (0.08)	$ (0.11)	$ (0.10)	$ (0.37)	$ (0.52)	$ (0.17)

Impairments and Other Fair Value Adjustments

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1,2)
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- Definition

Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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