Leases - (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Operating lease liability	$ 1,100,000
Right of use assets - operating lease	1,071,580
Right of use assets - finance lease	221,073
Finance lease liability	221,000
Lease costs	177,000
Operating lease costs	118,000
Lease costs	59,000
Amortization expense	$ 44,298
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Operating lease liability		$ 1,200,000
Right of use assets - operating lease		1,200,000
Right of use assets - finance lease		265,000
Finance lease liability		$ 265,000
Minimum
Lessee, Lease, Description [Line Items]
Term of contract	2 years
Maximum
Lessee, Lease, Description [Line Items]
Term of contract	4 years