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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2014
Valuation and Qualifying Accounts [Abstract] |
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] | SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS (in thousands)
Col. A |  | Col. B |  |  | Col. C |  |  | Col. D |  |  | Col. E |
|  |  |  |  |  | Additions |  |  |  |  |  |  |  |  |
Description |  | Balance at Beginning of Period |  |  | (1) Charged to Costs and Expenses |  |  | (2) Charged to Other Accounts (a) |  |  | Deductions(b) |  |  | Balance at End of Period |
Year Ended December 31, 2014: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 730 |  |  | $ | 1,356 |  |  | $ | 290 |  |  | $ | (709 | ) |  | $ | 1,667 |
Valuation allowance for deferred tax assets |  | $ | 2,748 |  |  | $ | 3 |  |  | $ | - |  |  | $ | (699 | ) |  | $ | 2,052 |
Year Ended December 31, 2013: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 2,064 |  |  | $ | 432 |  |  | $ | - |  |  | $ | (1,766 | ) |  | $ | 730 |
Valuation allowance for deferred tax assets |  | $ | 3,157 |  |  | $ | 92 |  |  | $ | - |  |  | $ | (501 | ) |  | $ | 2,748 |
Year Ended December 31, 2012: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 2,314 |  |  | $ | 140 |  |  | $ | - |  |  | $ | (390 | ) |  | $ | 2,064 |
Valuation allowance for deferred tax assets |  | $ | 4,620 |  |  | $ | 4 |  |  | $ | - |  |  | $ | (1,467 | ) |  | $ | 3,157 |
| (a) | In 2014, the change in the allowance for doubtful accounts represents the fair value of balances assumed in acquisition transactions. See Note 2 “Acquisitions” for further information.
| (b) | Deductions from allowance for doubtful accounts represent write-offs of receivable balances not considered collectible. The deduction from the valuation allowance for deferred tax assets represents changes in estimates of our future taxable income and our estimated future usage of certain net operating loss carryforwards, as well as expiration of certain net operating loss carryforwards.

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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