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Debt (Details) (USD $) | 3 Months Ended | 9 Months Ended |  | 0 Months Ended | 6 Months Ended | 40 Months Ended | 0 Months Ended | 3 Months Ended | 9 Months Ended |  |  | 0 Months Ended |  |  |  |  |  |  | 1 Months Ended | 40 Months Ended | 3 Months Ended | 12 Months Ended |  | 0 Months Ended | 60 Months Ended | 0 Months Ended | 1 Months Ended |  |  | 3 Months Ended | 9 Months Ended |  |
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | May 31, 2013 Fenco [Member] | May 24, 2012 Financing Agreement [Member] Term Loans [Member] | Sep. 30, 2013 Financing Agreement [Member] Term Loans [Member] | Jan. 17, 2017 Financing Agreement [Member] Term Loans [Member] | Nov. 22, 2013 Financing Agreement [Member] Term Loans [Member] Cerberus Warrant [Member] | Dec. 31, 2013 Financing Agreement [Member] Term Loans [Member] Cerberus Warrant [Member] | Dec. 31, 2012 Financing Agreement [Member] Term Loans [Member] Cerberus Warrant [Member] | Dec. 31, 2013 Financing Agreement [Member] Term Loans [Member] Cerberus Warrant [Member] | Dec. 31, 2012 Financing Agreement [Member] Term Loans [Member] Cerberus Warrant [Member] | Mar. 31, 2013 Financing Agreement [Member] Term Loans [Member] Cerberus Warrant [Member] | Aug. 31, 2012 Financing Agreement [Member] Term Loans [Member] Cerberus Warrant [Member] | May 24, 2012 Financing Agreement [Member] Revolving Facility [Member] | Dec. 31, 2013 Financing Agreement [Member] Revolving Facility [Member] | Mar. 31, 2013 Financing Agreement [Member] Revolving Facility [Member] | Dec. 31, 2013 Financing Agreement [Member] Revolving Facility [Member] Letter of Credit [Member] | Dec. 31, 2013 Financing Agreement [Member] Revolving Facility [Member] Commercial Letter Of Credit [Member] | Dec. 31, 2013 Financing Agreement [Member] Revolving Facility [Member] Standby Letters of Credit [Member] | Aug. 30, 2013 Financing Agreement [Member] Sixth Amendment [Member] | Jul. 31, 2013 Financing Agreement [Member] Sixth Amendment [Member] | Jun. 28, 2013 Financing Agreement [Member] Sixth Amendment [Member] | Aug. 31, 2013 Financing Agreement [Member] Seventh Amendment [Member] Term Loans [Member] | Jan. 17, 2017 Financing Agreement [Member] Seventh Amendment [Member] Term Loans [Member] | Jan. 18, 2014 Financing Agreement [Member] Ninth Amendment [Member] | Jan. 18, 2015 Financing Agreement [Member] Ninth Amendment [Member] | Nov. 06, 2013 Financing Agreement [Member] Ninth Amendment [Member] | Nov. 06, 2013 Financing Agreement [Member] Ninth Amendment [Member] Term Loans [Member] | Nov. 06, 2018 Financing Agreement [Member] Ninth Amendment [Member] Term Loans [Member] | Nov. 06, 2013 Financing Agreement [Member] Ninth Amendment [Member] Revolving Facility [Member] | Aug. 26, 2013 WX Agreement [Member] | Aug. 31, 2012 WX Agreement [Member] | Jun. 10, 2014 WX Agreement [Member] | Dec. 10, 2013 WX Agreement [Member] | Dec. 31, 2013 WX Agreement [Member] Supplier Warrant [Member] | Dec. 31, 2012 WX Agreement [Member] Supplier Warrant [Member] | Dec. 31, 2013 WX Agreement [Member] Supplier Warrant [Member] | Dec. 31, 2012 WX Agreement [Member] Supplier Warrant [Member] | Mar. 31, 2013 WX Agreement [Member] Supplier Warrant [Member] | Aug. 31, 2012 WX Agreement [Member] Supplier Warrant [Member]
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  | $ 85,000,000 |  |  |  |  |  |  |  |  |  | $ 20,000,000 |  |  | $ 10,000,000 |  |  |  |  |  |  |  |  |  |  | $ 95,000,000 |  | $ 30,000,000 |  | $ 22,000,000 |  |  |  |  |  |  |  |
Debt instrument, maturity date |  |  |  |  |  | Jan. 17, 2017 |  |  |  |  |  |  |  |  |  | Jan. 17, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  | Nov. 06, 2018 |  | Nov. 06, 2018 |  | Jul. 31, 2017 |  |  |  |  |  |  |  |
Reference interest rate under option 1 |  |  |  |  |  | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | LIBOR |  | LIBOR |  |  |  |  |  |  |  |  |  |
Reference interest rate under option 1, floor (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.50% |  |  |  |  |  |  |  |  |  |  |  |
Interest rate over LIBOR rate under option 1 (in hundredths) |  |  |  |  |  | 8.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.25% |  | 2.50% |  |  |  |  |  |  |  |  |  |
Interest rate above base rate under option 2 (in hundredths) |  |  |  |  |  | 7.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.25% |  | 1.00% |  |  |  |  |  |  |  |  |  |
Quarterly principal payments |  |  |  |  |  |  | 600,000 | 1,350,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,100,000 |  |  |  |  | 2,100,000 |  |  |  |  |  |  |  |  |  |  |
Minimum aggregate level of liquidity financial covenant, added under sixth amendment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 27,000,000 | 26,000,000 | 25,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional borrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (10,000,000) |  | 10,000,000 |  |  |  |  |  |  |  |  |  |
Maximum amount of equity interests that may be repurchased |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayment penalty (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.00% | 2.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum amount that can be prepaid within specified number of days subsequent to amendment effective date without prepayment penalty |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Number of days that prepayment penalty is waived for specified prepayment amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 120 days |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding balance under revolving loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,000,000 | 0 |  | 2,128,000 | 476,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount available under revolving facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 17,530,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility available for accrued interest and other amounts payable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,000,000 |  |  |  |  |  |  |  |
Payment terms under the WX Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 120 days |  |  |  |  |  |  |  |
Interest rate (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |  |  |
Interest rate applicable to unpaid amounts (per month) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.50% | 1.25% |  |  |  |  |  |
Payments of outstanding liabilities, including interest under the Guaranty |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,843,000 |  |  |  |  |  |  |  |  |
Number of shares that can be purchased under warrants (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 219,355 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 516,129
Initial exercise price (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7.75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7.75
Amount paid to repurchase warrants |  |  | 2,194,000 | 0 |  |  |  |  | 2,194,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Closing price of common stock on repurchase date (in dollars per share) |  |  |  |  |  |  |  |  | $ 17.75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjusted exercise price (in dollars per share) |  |  |  |  |  |  |  |  | $ 7.75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Difference between closing price of common stock on repurchase date less the adjusted exercise price (in dollars per share) |  |  |  |  |  |  |  |  | $ 10.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on extinguishment of warrant liability |  |  | 216,000 | 0 |  |  |  |  |  | 216,000 |  | 216,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of warrants issued |  |  |  |  |  |  |  |  | 2,410,000 |  |  |  |  | 375,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,485,000 |  | 6,485,000 |  | 1,639,000 |
Total loss included in net income (loss) | 2,920,000 | 882,000 | 6,881,000 | 825,000 |  |  |  |  |  | 996,000 | 214,000 | 2,035,000 | (36,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,924,000 | 668,000 | 4,846,000 | 861,000 |  |
Fair value assumptions of warrants [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend yield (in hundredths) |  |  |  |  |  |  |  |  | 0.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected volatility (in hundredths) |  |  |  |  |  |  |  |  | 45.69% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Risk-free interest rate (in hundredths) |  |  |  |  |  |  |  |  | 0.77% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent financing probability (in hundredths) |  |  |  |  |  |  |  |  | 0.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected life |  |  |  |  |  |  |  |  | 3 years 6 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving loan - in default, deconsolidated |  |  |  |  | 48,520,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term loan - in default, deconsolidated |  |  |  |  | $ 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The difference between the closing price of the company's common stock on the repurchase date and the adjusted exercise price per share of warrants or rights outstanding. + References No definition available. + Details
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- Definition The adjusted exercise price per share of warrants or rights outstanding. + References No definition available. + Details
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- Definition Fair value of warrants and rights outstanding. + References No definition available. + Details
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- Definition The percentage points added to the reference rate to compute the variable rate on the debt instrument under option two of the credit agreement. + References No definition available. + Details
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- Definition For the disposal group, including a component of the entity (discontinued operation), amount of revolving facility as the borrowers were not in compliance with this financial covenant under the credit agreement to be repaid within one year or the normal operating cycle. + References No definition available. + Details
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- Definition For the disposal group, including a component of the entity (discontinued operation), amount of term loan as the borrowers were not in compliance with this financial covenant under the credit agreement to be repaid within one year or the normal operating cycle. + References No definition available. + Details
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- Definition The maximum amount of equity interests for which the company has a right to repurchase, subject to certain conditions. + References No definition available. + Details
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- Definition Percentage of likelihood of future financing, used as an input to measure fair value. + References No definition available. + Details
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- Definition The minimum aggregate level of liquidity required to be maintained by the company as of the specified date under the debt agreement. + References No definition available. + Details
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- Definition The amount of the increase, or decrease, in the maximum borrowing capacity of a debt instrument pursuant to an amendment to the debt agreement. + References No definition available. + Details
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- Definition Represents borrowing capacity available for accrued interest and other amounts payable under the credit facility. + References No definition available. + Details
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- Definition The interest rate, per month, of unpaid amounts under the line of credit facility beginning on the reported date. + References No definition available. + Details
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- Definition The maximum amount of a debt instrument for which the company has the right to prepay, within a specified period, without incurring a prepayment penalty. + References No definition available. + Details
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- Definition The number of days subsequent to the amendment effective date for which the company has the right to repay a specified amount on the debt instrument. + References No definition available. + Details
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- Definition Represents the period within which payment for all purchases made under the agreement will be due and payable before accruing interest. + References No definition available. + Details
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- Definition A penalty for prepayment of debt presented as a percentage of the sum of the reduction of the revolving credit commitment plus the principal amount of any prepayment of the term loan during the specified period. + References No definition available. + Details
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- Definition The floor to which the reference rate (e.g., LIBOR) is subject. + References No definition available. + Details
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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Subparagraph 4 -Article 4 + Details
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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Subparagraph 2 -Article 4 + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of the required periodic payments applied to principal. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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