Organization Nature of Business and Significant Accounting Policies (Details Textual)		3 Months Ended
	Apr. 04, 2019 $ / shares shares	Mar. 31, 2019 USD ($) Segment shares	Mar. 31, 2018 USD ($) shares	Jan. 01, 2019 USD ($)	Dec. 31, 2018 USD ($) shares	Dec. 19, 2018 shares	Dec. 18, 2018 shares	Dec. 31, 2017 shares
Operations [Line Items]
Common Stock, Shares, Outstanding | shares		37,562,000			1,556,000
Common Stock, Shares Authorized | shares		44,000,000			4,200,000	44,000,000	4,200,000
Number of operating segments | Segment		3
Lease liability		$ 127,564
Operating lease right-of-use asset		122,701,000
Unbilled amounts recorded in accounts receivable		13,700,000			$ 7,800,000
Freight costs recorded in accounts payable		9,000,000			$ 6,100,000
Impairment charges		$ 778,000	$ 0
Subsequent Event
Operations [Line Items]
Stockholders' Equity Note, Stock Split, Pre-Split Cash Rate | $ / shares	$ 0.4235
Common Stock, Shares Authorized | shares	44,000,000
Reverse stock split ratio	0.04
Accounting Standards Update 2016-02 [Member]
Operations [Line Items]
Lease liability				$ 135,000,000
Operating lease right-of-use asset				$ 135,000,000
Common Stock
Operations [Line Items]
Common Stock, Shares, Outstanding | shares		37,561,532	1,540,197		1,555,868			1,536,925
Common Stock | Subsequent Event
Operations [Line Items]
Common Stock, Shares, Outstanding | shares	37,561,532