Segment Information (Details 1) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Revenues	$ 2,394	$ 1,686	$ 6,174	$ 4,854
Net income (loss)	(735)	(1,605)	(2,700)	(4,185)
UnitedStatesMember
Segment Reporting Information [Line Items]
Revenues	184	118	467	542
Net income (loss)	(1,087)	(830)	(3,042)	(2,067)
GERMANY
Segment Reporting Information [Line Items]
Revenues	2,210	1,568	5,707	4,312
Net income (loss)	352	(775)	342	(2,118)
Histology Equip [Member]
Segment Reporting Information [Line Items]
Revenues	1,628	811	3,847	1,988
Histology Equip [Member] | UnitedStatesMember
Segment Reporting Information [Line Items]
Revenues	65	36	175	220
Histology Equip [Member] | GERMANY
Segment Reporting Information [Line Items]
Revenues	1,563	775	3,672	1,768
Histology Consumables [Member]
Segment Reporting Information [Line Items]
Revenues	649	577	1,962	2,057
Histology Consumables [Member] | UnitedStatesMember
Segment Reporting Information [Line Items]
Revenues	119	82	292	322
Histology Consumables [Member] | GERMANY
Segment Reporting Information [Line Items]
Revenues	530	495	1,670	1,735
Cytology Consumables [Member]
Segment Reporting Information [Line Items]
Revenues	117	298	365	809
Cytology Consumables [Member] | UnitedStatesMember
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Cytology Consumables [Member] | GERMANY
Segment Reporting Information [Line Items]
Revenues	$ 117	$ 298	$ 365	$ 809